How are motherboard sizes classified?

Many users do not know how motherboard sizes are classified, and this problem has been plaguing many users. In order to solve this problem, PHP editor Strawberry has compiled relevant information, hoping to help everyone better understand the classification of motherboard sizes. More on that below.

How are motherboard sizes classified?

The size of the motherboard is classified by head size.

1. The size of the large ATX motherboard is about 30.5cm×24.4cm.

2. The size of the small motherboard Mirco-ATX About 23.5cm×21.4cm.

3. Smaller motherboards are very rare. MINI-ITX size is about 17cm×17cm.

4. Even smaller motherboards are rare. Baby-ITX size is around 17cm×17cm. About 12cm×12cm.

What is the difference between a large computer motherboard and a small one?

The main differences between large and small computer motherboards are reflected in size, expansion capabilities, cooling performance and price. Size: Large motherboards, such as ATX standard version, usually have a size of 30.5cm × 24.4cm, which is the most common standard motherboard size. Small motherboards, such as M-ATX and MINI-ITX, are smaller in size and suitable for use in small cases or mini cases. Expansion capabilities: Due to their larger size, large motherboards usually have more interfaces and expansion slots, such as more memory slots, PCI-E slots, SATA interfaces, etc., which means stronger expansion capabilities and upgrade potential. . In contrast, small motherboards have weak expansion capabilities due to size limitations. Thermal performance: Larger motherboards generally have better thermal performance because there is more space to install radiators and fans, as well as a better thermal layout. The heat dissipation performance of small motherboards may be slightly inferior due to space constraints. Price: Generally speaking, the price of large motherboards will be slightly higher than that of small motherboards, because large motherboards use more materials and have richer functions. But this does not mean that the price/performance ratio of small motherboards must be low. When choosing, you need to consider your personal needs and budget. In short, both large and small computer motherboards have their own advantages and disadvantages. Which motherboard to choose mainly depends on personal needs and budget. If you need stronger expansion capabilities, cooling performance, and higher stability, you may tend to choose a larger motherboard; and if you need a smaller computer or have a limited budget, you may choose a small motherboard.

How to distinguish between large and small computer motherboards?

1. The large board is a standard ATX motherboard 30.5 cm x 22.4 cm, and the small board is 24.4 cm x 24.4 cm. Judging from the size, the large board is rectangular, and the small board is close to a square.

2. Specific manifestations of scalability: The space of large boards is larger. The scalability is reflected in 1. Memory scalability. Large boards have 4 memory slots and can support larger-capacity memory. There are only two small boards, and the memory capacity is reduced by half.

3. The number of PCI slots. PCI slots can be expanded with PCI independent network cards and independent sound cards, and the performance will be better.

4. Graphics card slots. Some large boards have multiple PCI-E graphics card slots, which can support cross-fire of two or more independent graphics cards to obtain more powerful graphics card performance. Small boards have at most only An independent graphics card slot. Some small boards with integrated graphics cards do not have independent graphics card slots, so the gap in display performance is relatively large.

5. SATA interface and USB interface. The SATA interface can expand hard disks and optical drives. The more interfaces, the more hard disks and optical drives can be connected. Large boards have 6 or more SATA interfaces, which can be connected There are multiple hard drives, multiple optical drives, and the small board basically only has 4, so the scalability is very limited.

6. Small boards generally have 4 USB interfaces, while large boards can have 8 or more.

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